Examples from the Web for single-celled
Now the single-celled Infusorian is in many respects comparable with the single-celled germ of the higher animals.Applied Eugenics|Paul Popenoe and Roswell Hill Johnson
There are many kinds of these single-celled plants in the world.Through Magic Glasses and Other Lectures|Arabella B. Buckley
A single-celled, protoplasmic organism, which is constantly changing its form by protrusions and withdrawals of its substance.A Practical Physiology|Albert F. Blaisdell
There still exist large numbers of similar “single-celled organisms.”The History of Creation, Vol. II (of 2)|Ernst Haeckel
They are single-celled organisms and each individual has the prime factors of life, assimilation, growth and reproduction.